Overview:Multifunctional Bluetooth speaker power bankThe latest version of Bluetooth 4.1 Low power consumption, more power saving, faster Bluetooth pairing and connectionWith mobile power supply and wireless charging function, it can be used for 2.5 times of mobile phone charging.No electric current, no noise, no discontinuityLong effective connection distance of more than 10MTrue copper ring stereo speakers, subwoofer, rich sound qualitySmall size, convenient storageProduct information:Shell material: plasticSupport format: SD cardSpeaker adjustment method: buttonAppearance size: 8.0*7.0*11.5cmColors: White, BlackSpecifications: Dual speakers Bluetooth speaker + mobile power supply + wireless charging + SD card + 2500 mAh battery, dual speakers Bluetooth speaker + mobile power supply + wireless charging + SD card + 5000 mAh batteryPacking list:Dual speakers bluetooth speaker + mobile power supply + wireless charging + SD card + 2500 mAh batteryDual speakers bluetooth speaker + mobile power supply + wireless charging + SD card + 5000 mAh battery